kolster



F. A. KQLS'E'ER RADIO APPARATUS Filed Nov. 2 152p INVENTOR.

BY await {E d A TIFORNEY.

the extensions or capacit wings B on the turns of the inductance serves to impart to both the closed path and the open or are tenna path greater capacity, located far from the earth or countercapacity E. In other words, the structure. describe-dis a means for adding to the total capacity of both the antenna and closed paths and to cause the center of capacity of the entire system to be further removed from the earth or countercapacity E than if the structureQB extended antenna or capacity area.

As will be noted, particularly from Fig. 4, which is a side view of the structure shown in Fig. 3, the Wires or convolutions are Wide- 1y separated at the top of the structure. The wideseparation of the wires, particularly at the top of the structure, and the employment ofthe greater part of the wire inclusive.-

system, as in Fig. 1

engthof the convolutions at the top of the structure away from the ground, both contribute in keeping the capacity area of the structure or coil A. high above the ground, that is. the center of capacity of the far from the ground or counter-capacity E. While in Figs. 1 to 3 inclusive the high frequency energy is impressed upon the an tenna path or paths and somcof it transferred to the closed circuit due to unbalance 0f the latter with respect to the antenna path or paths, it will be lmderstood that the energy may be impressed upon the closed circuit, and due to dissymmetry, some of it transferred to the antenna path or paths.

Or, as in Fig. 7 of said Letters Patent, high frequency energy may be impressed simultaneouslyupon the closed circuit-and thpantcnna path or paths of Figs. 1 to 3 It will further he understood that an rangements like those of Figs. 1 to 3 inclusire may be used for unilateral reception or such, for example.

unilateral "direction finding,

interference prevention, etc, by associating with, the closed circuit and antenna path or-paths suit-able receiving or detecting apparatus, as that described in my aforesaid Letters Patent No. 1,45l7.l65. Thus. in each of said figures the receiving circuits may be connected to the opposite terminals of the condenser C; or they may be coupled to the antenna path or pathsat is near the top, that is,

. rality of turns of mousse of which is a part of a convolution of said inductance.

2. Radio apparatus .comprisinga capacity ares. having a plurality of conductors, a closed circuit including an inductance of a plurality of turns, a part of each of a plurality of said conductors of said capacity area constituting a. part of each of a pluralit of turns of said inductance. v

3. Radio apparatus comprising a ciosed circuit including an inductance, and acapacity area comprising a conductor a part of Which is a part of a convolution of said inductance, and a connection from said closed circuit to a counter-capacity.

4. Radio apparatus comprising a c sed circuit including an inductance, and a capacity area comprising a conductor a part of which is a part of a convolution of said inductance,

a connection from said closed circuit to a counter-capacity, and. means for determin-v ing the degree of symmetry of said closed circuit with respect to said last named connection.

5. Radio apparatus comprising a capacity areahavin'g a plurality of conductors, a closed circuit including an inductance of a plurality of turns, a part of each of a plurality of said conductors of said capacity area constituting a part of each of a pluralitypf turns of said inductance, and a connection from said" closed circuit to a counter-capacity.

6. Radio apparatus comprising a capacity area having-a plurality of conductors. a

closed circuit including an inductance of a plurality of turns, a part of each of a plurality of said conductors of said capacity a part of each of a pluareaconstituting:

said inductance, a connection from said closed circuit to a countercapacity, and means for determining the decree of symmetry of said closed circuit with respect to said last named connection.

7. Transmitting apparatus comprising a plurality of radiators;

cuit forminga part of said structure, means for determining the degree of symmetry of said closed circuit with respect tosaid antenna structure comprising inductances in series with each other in said closed circuit, at least one of said inductances being variable, a connection from a point between said inductanccs to a capacity area or countercapacity, and means for setting up oscillations in said antenna structure and said closed circuit.

one of which is an antenna structure and another a closed cirquency oscillations upon said antenna str'ucture and through said inductancesupon said closed circuit.

9. Transmitting apparatus comprising a plurality of radiators, one of which is an antenna structure and another a closed circuit forming a part of said structure, means for determining the degree of symmetry of said closed circuit with respect to said an? tenna structure comprising inductances in series with each other in said closed circuit, at least one of said inductanccs being; variable, a connection from a point between said inductances to a capacity area or countercapacity, a condenser whose terminalsare connected, respectively, to said inductanccs at points distant from said connection, and means gfor setting up oscillations in said antenna structure and said closed circuit.

10, Transmitting; apparatus comprising a plurality of radiators, one of which is an antenna. structure and another a closed circuit forming a part of said structure, radiating inductance in said closed circuit, a condenser in series with said inductance in said closed circuit,-inductances in series'with a connection from a point between said inductances to a capacityarea or con ter-eapacity', and means for et'z'cctiug oscillations in said antenna structure and said closed circuit.

11. Radio apparatus comprising-a closed circuit including an inductance coil co-acting directly with the natural media, a denser for tuning said closed circuit, inciuc tances connected to the ends of said coil, a conductor connecting the ends of said inductances, and a connection from said can ductor to earth or counter-capacity.

'- 12'. Radio apparatus comprising a closed circuit including an inductance coil c -acting directly with the natural media, a denser fortuning said closed circuit, induc tances connected to the ends of said coil, connections from the terminals 01 said condenser to said inductanccs, a conductor com necting said inductances at points :reon non-coincident with the points to which the terminals of said condenser connected, and a connection from said conductor to earth or counter-capacity.

13. Radio apparatus comprising circuit including an inductar coil co-acting directly with the natural ei'iia, a condenser for tuning said closed circuit, iuduc tances connected to ends of said coii,

closed variable connections from the terminals said condenser to said inductances; anti variable connections from said inductances to earth or counter-capacity.

Iutestimony whereof I hereunto iii-- fixcd my signature this 25th day of Fi'oreinher, 1920. 

